var XmlDoc_province = new ActiveXObject("Microsoft.XMLDOM");
var XmlDoc_city = new ActiveXObject("Microsoft.XMLDOM");
var XmlDoc_district = new ActiveXObject("Microsoft.XMLDOM");
XmlDoc_province.async = true;
XmlDoc_city.async = true;
XmlDoc_district.async = true;
XmlDoc_province.load("xml/province.xml");
XmlDoc_city.load("xml/city.xml");
XmlDoc_district.load("xml/district.xml");

function LoadProvince()
{
     if (XmlDoc_province.readyState == 4 && XmlDoc_province.xml != "")
     {

         var ProvinceObj = document.getElementById("ctl00_ContentPlaceHolder1_Province");
         ProvinceObj.length = 0;
         var ProvinceXML = XmlDoc_province.documentElement.selectNodes("province");
         ProvinceObj.options[0] = new Option("请选择省","0");
         ProvinceObj.value = "0";
         for(var i=0;i<ProvinceXML.length;i++)
             ProvinceObj.options[ProvinceObj.length] = new Option(ProvinceXML[i].getAttribute("provincename"),ProvinceXML[i].getAttribute("provincename"));
     }
}

function LoadCity(v)
{
   var cityObj = document.getElementById("ctl00_ContentPlaceHolder1_City");
    
   if (v != "0")
   {
    if (XmlDoc_city.readyState == 4 && XmlDoc_city.xml != "")
    {
     cityObj.length = 0;
     var cityXML = XmlDoc_city.documentElement.selectNodes("city");
     cityObj.options[0] = new Option("请选择市","0");
     cityObj.value = "0";
     for (var i=0; i < cityXML.length; i++)
     {
      if (cityXML[i].getAttribute("provinceid") == v)
       cityObj.options[cityObj.length] = new Option(cityXML[i].getAttribute("cityname"),cityXML[i].getAttribute("cityname"));
     }
    }
    else
     return;
   }
   else
   {
    cityObj.length = 0;
    cityObj.options[0] = new Option("请选择市","0");
   }
}